package com.tensquare.user.service;

import cn.hutool.core.date.DateTime;
import cn.hutool.core.date.DateUtil;
import com.tensquare.user.dao.UserDao;
import com.tensquare.user.pojo.User;
import execption.BusinessExecption;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Example;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.stereotype.Service;
import util.IdWorker;

import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;
import javax.transaction.Transactional;
import java.util.*;
import java.util.concurrent.TimeUnit;

/**
 * 服务层
 * 
 * @author Administrator
 *
 */
@Service
@Transactional(rollbackOn = Exception.class)
public class UserService {

	@Autowired
	private UserDao userDao;
	
	@Autowired
	private IdWorker idWorker;

	@Autowired
	private RedisTemplate redisTemplate;

	@Autowired
	private RabbitTemplate rabbitTemplate;

	@Autowired
	private BCryptPasswordEncoder passwordEncoder;

	/**
	 * 查询全部列表
	 * @return
	 */
	public List<User> findAll() {
		return userDao.findAll();
	}

	
	/**
	 * 条件查询+分页
	 * @param whereMap
	 * @param page
	 * @param size
	 * @return
	 */
	public Page<User> findSearch(Map whereMap, int page, int size) {
		Specification<User> specification = createSpecification(whereMap);
		PageRequest pageRequest =  PageRequest.of(page-1, size);
		return userDao.findAll(specification, pageRequest);
	}

	
	/**
	 * 条件查询
	 * @param whereMap
	 * @return
	 */
	public List<User> findSearch(Map whereMap) {
		Specification<User> specification = createSpecification(whereMap);
		return userDao.findAll(specification);
	}

	/**
	 * 根据ID查询实体
	 * @param id
	 * @return
	 */
	public User findById(String id) {
		return userDao.findById(id).get();
	}

	/**
	 * 增加
	 * @param user
	 */
	public void add(User user) {
		user.setId( idWorker.nextId()+"" );
		user.setPassword(passwordEncoder.encode(user.getPassword()));
		userDao.save(user);
	}

	/**
	 * 修改
	 * @param user
	 */
	public void update(User user) {
		userDao.save(user);
	}

	/**
	 * 删除
	 * @param id
	 */
	public void deleteById(String id) {
		userDao.deleteById(id);
	}

	/**
	 * 动态条件构建
	 * @param searchMap
	 * @return
	 */
	private Specification<User> createSpecification(Map searchMap) {

		return new Specification<User>() {

			@Override
			public Predicate toPredicate(Root<User> root, CriteriaQuery<?> query, CriteriaBuilder cb) {
				List<Predicate> predicateList = new ArrayList<Predicate>();
                // ID
                if (searchMap.get("id")!=null && !"".equals(searchMap.get("id"))) {
                	predicateList.add(cb.like(root.get("id").as(String.class), "%"+(String)searchMap.get("id")+"%"));
                }
                // 手机号码
                if (searchMap.get("mobile")!=null && !"".equals(searchMap.get("mobile"))) {
                	predicateList.add(cb.like(root.get("mobile").as(String.class), "%"+(String)searchMap.get("mobile")+"%"));
                }
                // 密码
                if (searchMap.get("password")!=null && !"".equals(searchMap.get("password"))) {
                	predicateList.add(cb.like(root.get("password").as(String.class), "%"+(String)searchMap.get("password")+"%"));
                }
                // 昵称
                if (searchMap.get("nickname")!=null && !"".equals(searchMap.get("nickname"))) {
                	predicateList.add(cb.like(root.get("nickname").as(String.class), "%"+(String)searchMap.get("nickname")+"%"));
                }
                // 性别
                if (searchMap.get("sex")!=null && !"".equals(searchMap.get("sex"))) {
                	predicateList.add(cb.like(root.get("sex").as(String.class), "%"+(String)searchMap.get("sex")+"%"));
                }
                // 头像
                if (searchMap.get("avatar")!=null && !"".equals(searchMap.get("avatar"))) {
                	predicateList.add(cb.like(root.get("avatar").as(String.class), "%"+(String)searchMap.get("avatar")+"%"));
                }
                // E-Mail
                if (searchMap.get("email")!=null && !"".equals(searchMap.get("email"))) {
                	predicateList.add(cb.like(root.get("email").as(String.class), "%"+(String)searchMap.get("email")+"%"));
                }
                // 兴趣
                if (searchMap.get("interest")!=null && !"".equals(searchMap.get("interest"))) {
                	predicateList.add(cb.like(root.get("interest").as(String.class), "%"+(String)searchMap.get("interest")+"%"));
                }
                // 个性
                if (searchMap.get("personality")!=null && !"".equals(searchMap.get("personality"))) {
                	predicateList.add(cb.like(root.get("personality").as(String.class), "%"+(String)searchMap.get("personality")+"%"));
                }
				
				return cb.and( predicateList.toArray(new Predicate[predicateList.size()]));

			}
		};

	}

	/**
	 * 发送短信验证码
	 * @param mobile 手机号
	 */
	public void sendSms(String mobile){
		Random random = new Random();
		int max = 999999;//最大数
		int min = 100000;//最小数
		int code = random.nextInt(max);
		if(code < min){
			code += min;
		}

		redisTemplate.opsForValue().set("smscode_" + mobile, code + "", 5, TimeUnit.MINUTES);
		Map<String, Object> map = new HashMap<>();
		map.put("mobile", mobile);
		map.put("code", code + "");
		rabbitTemplate.convertAndSend("sms", map);
		System.out.println("短信验证码: " + code);
	}

	/**
	 * 用户注册
	 * @param user 用户信息
	 * @param code 验证码
	 */
    public void register(User user, String code) {
		User u = new User();
		u.setMobile(user.getMobile());
		boolean exists = userDao.exists(Example.of(u));
		if(exists){
			throw new BusinessExecption("该手机号已被注册");
		}
		String syscode = (String) redisTemplate.opsForValue().get("smscode_" + user.getMobile());
		if(syscode == null){
			throw new BusinessExecption("验证码不存在");
		}else if(!syscode.equals(code)){
			throw new BusinessExecption("验证码不正确");
		}

		user.setId(idWorker.nextId() + "");
		user.setPassword(passwordEncoder.encode(user.getPassword()));
		user.setFanscount(0);//粉丝数
		user.setFollowcount(0);//关注数
		user.setRegdate(new Date());//注册日期
		user.setLastdate(new Date());//最后登录日期
		user.setUpdatedate(new Date());//更新日期
		userDao.save(user);
		System.out.println(new Date());
		System.out.println(DateUtil.formatDateTime(new Date()));

		try {
			redisTemplate.delete("smscode_" + user.getMobile());
		}catch (Exception e){
			e.printStackTrace();
		}
	}

    public User findByMobileAndPassword(String  mobile, String password) {
		User user = userDao.findByMobile(mobile);
		if(user != null && passwordEncoder.matches(password, user.getPassword())){
			user.setLastdate(DateTime.now());
			userDao.save(user);
			return user;
		}else{
			return null;
		}
    }

	/**
	 * 增加关注数
	 * @param userid 用户id
	 * @param x 数量
	 * @return
	 */
    public void incFollowCount(String userid, int x) {
    	userDao.incFollowCount(userid, x);
    }

	/**
	 * 增加粉丝数
	 * @param userid 用户id
	 * @param x 数量
	 * @return
	 */
	public void incFansCount(String userid, int x) {
		userDao.incFansCount(userid, x);
	}
}
